The SAFE Purchase Agreement: A Founder's Section-by-Section Guide
Most founders learn quickly that a SAFE is not just one document. The SAFE itself — the "simple agreement for future equity" — is the instrument that converts into stock in a future round. But before anyone signs a SAFE, a smart company almost always signs a SAFE Purchase Agreement: the wrapper contract that says who is buying, how much, at what closing, under what representations, and on what legal terms.
Founders often treat the Purchase Agreement as boilerplate and rush to sign the SAFE. That's a mistake. The Purchase Agreement is where every dispute about "what did we actually agree to" gets resolved. Every ambiguity you leave in it — the maximum raise, the definition of accredited investor, the governing law, the ability to add additional purchasers — becomes a fight later.
This guide walks the standard SAFE Purchase Agreement from top to bottom in plain English. It is written for founders who have a term sheet or a lead investor and are about to close a SAFE round, and who want to understand what they are actually signing before they hand it to counsel.
The opening block does three simple things: identifies the company, identifies the purchasers on Exhibit A, and sets the total ceiling of the round (the "Maximum Amount"). This is the single most important number in the whole document. Everything downstream — dilution, option pool math, the pitch to your next lead — sits on top of it.
Get the Maximum Amount right the first time. Founders routinely set the ceiling too low, hit it in the first two weeks, and then have to sign an amendment to keep taking checks. Every amendment costs legal fees and, worse, gives every purchaser a reason to reopen the terms. If you think you can raise $1.5M, put the Maximum Amount at $2.0M. If you think you can raise $2.5M, put it at $3.0M. Nothing forces you to sell to the ceiling; nothing punishes you for leaving room. 1.1 The Instrument
Section 1.1 attaches the actual…
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